mazur Posted June 11, 2009 Share Posted June 11, 2009 This is not an attack or anything of the sort. Just something I found interesting. My story is that I have an BMW E30 with an E36 M3 engine swap which I had been base classed for TTC*. Since my dynograph was not valid (done on Dyno Dynamics), it was classed based on stock HP rating. After all the points were added for power mods and suspension and such I still remained in TTC and had 250rwhp. I decided to turbocharge my car, so I requested to get a base classing for TTA. What I got was 295rwhp for TTA* and 325rwhp for TTA**. So this is the part that gets me wondering. Just by looking at HP numbers, I got charged 34 points for 45hp and then am only charged 7 points for an extra 30hp? Is just the fact of having a turbocharger (without HP increase) really worth 23 points? I think what it probably comes down to is how you play the rule book so you shouldn't expect it to be fair from all angles. But I have to say I was bit disappointed. Especially since to make that power I will only be boosting 5psi...how boring, lol Quote Link to comment Share on other sites More sharing options...
kbrew8991 Posted June 11, 2009 Share Posted June 11, 2009 you do get alot of points back with those higher base classes if you're running reasonable width tires Quote Link to comment Share on other sites More sharing options...
jason Posted June 12, 2009 Share Posted June 12, 2009 295 is a reasonable tire. 315 would be an excellent tire. Quote Link to comment Share on other sites More sharing options...
mazur Posted June 12, 2009 Author Share Posted June 12, 2009 Yes, all reasonable sizes for an E30, haha. Quote Link to comment Share on other sites More sharing options...
JamesL Posted June 15, 2009 Share Posted June 15, 2009 I would be interested in hearing what methods/formulas are used to classify the cars based on dynomameter readings and weight... Quote Link to comment Share on other sites More sharing options...
Trevor57 Posted June 15, 2009 Share Posted June 15, 2009 You aren't the first to wonder. They aren't telling. Quote Link to comment Share on other sites More sharing options...
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